a = 'http://localhost:8080/payok/?charset=utf-8&out_trade_no=IVi3aQ20lH&method=alipay.trade.page.pay.return&total_amount=1299.00&sign=VVpmlpHtXtn%2F54jF%2BbqPfjefw5Tq%2BL9C2TVdW127yEYGgXMSdIhuu%2F43ayDgGMi4wgu2RmczWzT%2Fh8a%2FN3sWebIAlGycB9BB0ps0MkWN111lpX0wuvFFSSIyh8mP0VzyEO5G3gEFXLCTuOHwSfnA9lHDDhaAeXP8tlfUHsx8lnfFSvwKkgCq5%2B%2BDHiEEZevGHeBP2%2BydepiogCRuQ311nW7e4Zhgv5wZ2q8dzIZm0rQBr93sSPEgeZyqyt6%2Fgs8LvOO1acJur8MpLBWprhLGnoiout96FgZ2594LLbCjqJoEJMtLhQpAJAn3Llxh4H9Ehm1OK2eaYPC0DKl00XaVLA%3D%3D&trade_no=2020042922001464030500672982&auth_app_id=2016102200739381&version=1.0&app_id=2016102200739381&sign_type=RSA2&seller_id=2088102180657710&timestamp=2020-04-29%2011%3A54%3A10'
print(a.split('&'))

#['http://localhost:8080/payok/?charset=utf-8',
# 'out_trade_no=IVi3aQ20lH',
# 'method=alipay.trade.page.pay.return',
# 'total_amount=1299.00',
# 'sign=VVpmlpHtXtn%2F54jF%2BbqPfjefw5Tq%2BL9C2TVdW127yEYGgXMSdIhuu%2F43ayDgGMi4wgu2RmczWzT%2Fh8a%2FN3sWebIAlGycB9BB0ps0MkWN111lpX0wuvFFSSIyh8mP0VzyEO5G3gEFXLCTuOHwSfnA9lHDDhaAeXP8tlfUHsx8lnfFSvwKkgCq5%2B%2BDHiEEZevGHeBP2%2BydepiogCRuQ311nW7e4Zhgv5wZ2q8dzIZm0rQBr93sSPEgeZyqyt6%2Fgs8LvOO1acJur8MpLBWprhLGnoiout96FgZ2594LLbCjqJoEJMtLhQpAJAn3Llxh4H9Ehm1OK2eaYPC0DKl00XaVLA%3D%3D',
# 'trade_no=2020042922001464030500672982',
# 'auth_app_id=2016102200739381',
# 'version=1.0',
# 'app_id=2016102200739381',
# 'sign_type=RSA2',
# 'seller_id=2088102180657710',
# 'timestamp=2020-04-29%2011%3A54%3A10']